GHSA-8r5j-gm3j-cx9c · Severity: high · Ecosystem: composer — Winter CMS Server-Side Template Injection (SSTI) vulnerability
Server-side Template Injection (SSTI) vulnerability in Winter CMS v.1.2.3 allows a remote attacker to execute arbitrary code via a crafted payload to the CMS Pages field and Plugin components. NOTE: the vendor disputes this because the payload could only be entered by a trusted user, such as the owner of the server that hosts Winter CMS, or a developer working for them.
Conclusion & alert: CVE-2024-29686 is rated High Exploit Risk (67.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.82%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 4.47% | 1.82% | -2.64% |
| 2 | 2026-04-17 | 3.46% | 4.47% | +1.01% |
| 3 | 2025-11-21 | — | 3.46% | — |
Full EPSS history (16 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.2 | 3.1 | HIGH |
|
1.2 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-8r5j-gm3j-cx9c · Severity: high · Ecosystem: composer — Winter CMS Server-Side Template Injection (SSTI) vulnerability
| URL | Tags |
|---|---|
| https://forum.ksec.co.uk/t/webapps-winter-cms-1-2-3-server-side-template-injection-ssti-authenticated/2779 | Third Party Advisory |
| https://wintercms.com/docs/v1.2/docs/cms/themes#template-structure | Product |
| https://www.exploit-db.com/exploits/51893 | Exploit Third Party Advisory |